GitLab

- content -> tag
- per tag news page
- add links from side-panel boxes to tags lists
- add tag cloud for news page

'event', 'release', 'publication'

Later want to add 'application' which can be used for a gallery

added a 'core release' block to the main page

added an automatic switching gallery

added an automatic switching gallery

better to use precentages for the box width also added 'application' images
to 'all news' page

show all 'corerelease' news entries (no reason to restrict this)

This commit fixes the repository mess introduced by uploading
the tarballs without LFS. This completely erases all traces of
the previous commits from the repository and goes directly to
master as a force-push, as that is the only remedy.

Hugo is smart and knows that June only has 30 days.

* add changelog
* add news entry